EXPLANATION OF PLATES 119 



Fig. 59. Portion of a large mass of Bacteria and Torulae 

 taken from tube No. 189. 



60. o. Portion of a Mycelium taken from tube 189; b. An 

 incipient Mould from tube No. 186; c. A group of 

 Torulae, many of them united by minute hyphae 

 from tube No. 187. 



" 61. A large mass of Torulae, with four Bacteria, cul- 

 tivated from tube No. 186, as found on the ninth 



day. 



